He wrote: “Whilst I have been informed that I am at very low risk, I have called 111 to be formally assessed.
“As a precaution, we have cancelled all engagements until next Thursday when the 14-day potential incubation period will end.”
On Friday Mr Sobel’s office said he had “spent the afternoon in isolation in a room in his office away from staff
“After receiving advice from 111 and being established as low risk, Alex will not remain in isolation, but will stay away from public engagements as a precautionary measure.”
His office wanted to make clear that “Alex has not been tested for coronavirus, only assessed by 111.”
A letter sent to delegates who attended the conference on Thursday advised them to call NHS 111 if they develop symptoms such as a fever or cough.
The letter also advised them to remain indoors and avoid outside contact if they start to feel unwell.
